Hard disk and partition control method and device of hard disk

The invention discloses a hard disk and a partition control method and device of the hard disk, relates to the field of information security, and is applied to the partition control device in the hard disk. The method comprises the steps that when a power-on signal of a host is received, a loading instruction of the host is guided to a virtual partition table; when a handshake request of a control end is received, the actual partition table is sent to the control end; and when a state switching instruction of a control end is received, performing state switching on the partitions corresponding to the state switching instruction according to the state switching instruction, and respectively updating the virtual partition table and the actual partition table. The loading instruction of the host can only be guided to the virtual partition table, the virtual partition table only comprises the partition in the display state, and the partition in the hidden state is invisible to the outside, so that the host can on